C Library Functions - saxpy (3)
NAME
saxpy(3f) - [BLAS:SINGLE_BLAS_LEVEL1] SY:=SY+SA*SX (constant times a vector plus a vector)
CONTENTS
Synopsis
Definition
Options
Authors
Further Details
See Also
SYNOPSIS
subroutine saxpy(n,sa,sx,incx,sy,incy)
.. Scalar Arguments .. real,intent(in) :: sa integer,intent(in) :: incx,incy,n .. .. Array Arguments .. real,intent(in) :: sx(*) real,intent(inout) :: sy(*) ..
DEFINITION
SAXPY constant times a vector plus a vector. uses unrolled loops for increments equal to one.
OPTIONS
N
number of elements in input vector(s)
SA
On entry, SA specifies the scalar alpha.
SX
SX is REAL array, dimension ( 1 + ( N - 1 )*abs( INCX ) )
INCX
storage spacing between elements of SX
SY
SY is REAL array, dimension ( 1 + ( N - 1 )*abs( INCY ) )
INCY
storage spacing between elements of SY
AUTHORS
o Univ. of Tennessee o Univ. of California Berkeley o Univ. of Colorado Denver o NAG Ltd. date:November 2017
FURTHER DETAILS
jack dongarra, linpack, 3/11/78. modified 12/3/93, array(1) declarations changed to array(*)
SEE ALSO
Online html documentation available at http://www.netlib.org/lapack/explore-html/
| Nemo Release 3.1 | saxpy (3) | February 23, 2025 |
